Solve for x
x = \frac{227}{89} = 2\frac{49}{89} \approx 2.550561798
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30\left(5x-3\right)-15\left(2x-1\right)-42\left(3x-4\right)=10\left(2x-5\right)+21\left(3x-4\right)
Multiply both sides of the equation by 210, the least common multiple of 7,14,5,21,10.
150x-90-15\left(2x-1\right)-42\left(3x-4\right)=10\left(2x-5\right)+21\left(3x-4\right)
Use the distributive property to multiply 30 by 5x-3.
150x-90-30x+15-42\left(3x-4\right)=10\left(2x-5\right)+21\left(3x-4\right)
Use the distributive property to multiply -15 by 2x-1.
120x-90+15-42\left(3x-4\right)=10\left(2x-5\right)+21\left(3x-4\right)
Combine 150x and -30x to get 120x.
120x-75-42\left(3x-4\right)=10\left(2x-5\right)+21\left(3x-4\right)
Add -90 and 15 to get -75.
120x-75-126x+168=10\left(2x-5\right)+21\left(3x-4\right)
Use the distributive property to multiply -42 by 3x-4.
-6x-75+168=10\left(2x-5\right)+21\left(3x-4\right)
Combine 120x and -126x to get -6x.
-6x+93=10\left(2x-5\right)+21\left(3x-4\right)
Add -75 and 168 to get 93.
-6x+93=20x-50+21\left(3x-4\right)
Use the distributive property to multiply 10 by 2x-5.
-6x+93=20x-50+63x-84
Use the distributive property to multiply 21 by 3x-4.
-6x+93=83x-50-84
Combine 20x and 63x to get 83x.
-6x+93=83x-134
Subtract 84 from -50 to get -134.
-6x+93-83x=-134
Subtract 83x from both sides.
-89x+93=-134
Combine -6x and -83x to get -89x.
-89x=-134-93
Subtract 93 from both sides.
-89x=-227
Subtract 93 from -134 to get -227.
x=\frac{-227}{-89}
Divide both sides by -89.
x=\frac{227}{89}
Fraction \frac{-227}{-89} can be simplified to \frac{227}{89} by removing the negative sign from both the numerator and the denominator.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}